 /*******************************************************************************
  * Copyright (c) 2005, 2006 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  * IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.update.internal.operations;

 import java.lang.reflect.InvocationTargetException ;

 import org.eclipse.core.runtime.CoreException;
 import org.eclipse.core.runtime.IProgressMonitor;
 import org.eclipse.update.configuration.IConfiguredSite;
 import org.eclipse.update.core.IFeature;
 import org.eclipse.update.operations.IOperation;
 import org.eclipse.update.operations.IOperationListener;

 public abstract class BatchFeatureOperation extends Operation implements IBatchFeatureOperation {

     private IFeature[] features;
     private IConfiguredSite[] targetSites;
     
     
     public BatchFeatureOperation(IConfiguredSite[] targetSites, IFeature[] features) {
         super();
         this.features = features;
         this.targetSites = targetSites;
     }
     
     public IFeature[] getFeatures() {
         return features;
     }

     public IConfiguredSite[] getTargetSites() {
         return targetSites;
     }

     public void setTargetSites(IConfiguredSite[] targetSites) {
         this.targetSites = targetSites;
         
     }
     
     public boolean execute(IProgressMonitor pm, IOperationListener listener)
         throws CoreException, InvocationTargetException {

         if (getFeatures() == null || getFeatures().length == 0)
             return false;
         IOperation[] operations = new IOperation[getFeatures().length];
         
         for ( int i = 0; i < getFeatures().length; i ++) {
             operations[i] = createOperation(getTargetSites()[i], getFeatures()[i]);
         }
         
         boolean restartNeeded = false;

         for ( int i = 0; i < operations.length; i ++) {
             try {
                 boolean status = operations[i].execute(pm, listener);
                 if (status)
                     restartNeeded = true;
             } catch (Throwable t) {
                 t.printStackTrace();
             }
         }

         return restartNeeded;

     }

     protected abstract IOperation createOperation(IConfiguredSite targetSite, IFeature feature);

 }

